Pictures of an oldtimer (mine....) get rejected for reasons of intellectual property. Some (erroneously) had a brand name in tags, but others didn't. One picture was even removed after first being accepted. There is no visible manufacturer logo, and the site is full of similar pictures or old and new cars whose manufacturer is easy to identify. This seems quite arbitrary.
They even rejected a picture of flag with a small town's coat of arms, when again there are plenty of similar pictures around. But no, mine had intellectual property issues. Yeah right.
Lots of very strange decisions, like very similar pictures/motives where one gets accepted, the other rejected for aesthetic reasons... Or claims of artefacts when there aren't any - but this seems to be common....
Waiting for reply to email, but was quite annoyed today.
[Moved from the Stock Contributor Critique forum (which is for getting others' eyes on your work for constructive advice) and into the Stock Contributor's support forum - moderator]
Please post some examples of the images you are talking about. We will always err on the side of caution when it comes to intellectual property. You can find a list of known restrictions here: Known image restrictions